Edge binding



A. w. PETERS EDGE BINDING April 28, 1931.

Filed June 12, 1930 fliziazzyla/ 1 66 321; By Max,

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Patented Apr. 35km UNITED STATES PATENT OFFICE ANTHONY W. PETERS, OF WEST ROXBURY, MASSACHUSETTS, ASSIGNOR '03 ONE-HALF T DONALD I4. WHITTEMORE, OF WEST NEWTON, MASSACHUSETTS EDGE BINDING Application filed June 12,

My invention is particularly related to the it consists in providing an improved binding member to finish an edge of an article of manufacture, such as a shoe, glove or other article.

In the drawings:

Figure 1 is a section of a portion of an upper with a binding strip sewed upon its outer surface at the upper edge;

Figure 2 is a view, similar to Figure 1, showing the binding strip, after the application of cement upon its exposed surface, as in Figure 1, turned over the top of the upper and cemented to the inner surface of the Figure 3 is a view similar to Figure 1, but showmg my improvement;

Figure 3 is a fragmentary view of Figure 3 looking-in the direction of the arrow, showingthe stitching;

igure 4 is a view similar to Figure 2, but showmg my improvement;

Fi re 4 is a fragmentary view of Figure 4, 100 ing in the direction of the arrow, showing the guard 4 in process of removal;

igure 5 is a view similar to Figure 4, but with the guard element removed;

Figure 6 is a section of my new binding element;

Figure 6* is a view similar to Figure 6, with the addition of a cement sheet;

Figure 7 is a front elevation of my new binding element; and

Figure 8 is a rear elevation of my new binding element.

In the drawings I have shown the various elements of my device on an exaggerated scale, as was necessary for clearness.

I shall describe my invention more especiall in its application in the process of manuflacturing shoes. The edges of shoe uppers have heretofore commonly been finished either by skiving the edges, applying cement to the skived surface and then folding the skived surface upon itself, permitting the cementedsurfaces to engage and permanently hold thefolded edge in place. This finish,

1980. Serial No. 480,851.

however, was costly and slow and produced an undue percentage of defective shoes. It has been largely superseded by the practice of applying over the raw edge of the upper a strip of soft, thin leather or a fabricated StI'IP SIICh as silk tape or other woven strip. The binding strip, 2, of whatever it was made, was applied to the u r 1, at its outer top edge surface by stitc mg 3 and wet cement was then applied to the exposed surface of the binding strip and the strip, thus cemented, turned over the top edge of the upper 1 and pressed against the inner surface 1" of the upper (see Figure 2). It will be obvious that unless the cement was perfectly applied and to the very ed e of the strip, that the cemented strip woul show raised or uncemented edges in spots and be to this extent imperfect and it will also beobvious that to apply the cement to the very edge of the binder strip or tape, after the stitching, as was necessary, required a good deal of Sklll and care and that frequently, in spite of care, cement would be laid, in spots or patches, not only on the binding strip 2, but also upon the outer surface of the upper, adjacent the edge of the binding strip, necessitating the inspection of ever shoe made and a cleaning process where an when necessary and in the case of delicate and colored uppers probably causing permanent damage and.

marring.

My improvement consists in providing a guard element 4, easily and completely removable after the shoe is finished, interposed and secured between the binder element or tape 2, and the outer surface of the shoe upper 1. It will be apparent that wet cement may be applied to the exposed surface of the binder 2, Figure 3, and that any application of wet cement, by mischance, below the ta e 2, will be laid upon the guard element 4. e drawings (Figure 4) show the next step, in which the binding strip 2, after being covered with wet cement to the very edge is turned over the top of the upper 1 and cemented into contact with the inner surface 1 of the upper, leaving the guard element 4, with any accretion of wet cement, in place. It will be obvious the removal of this guard element 4 must be complete, leaving no traces behind of the guard, to mar the appearance of the finished shoe. To accomplish this perfectl I provide a line of perforations alon 5 whic the guard will tear when it is desire to remove it, the guard 4 being of paper or other similar easily torn material, such for example as glassene fabric, so-called, or cellophane fabric, a material somewhat similar to glassene. The latter named material is of amorphous structure and tears perfectly along a line of perforations (see Figures 3, 4 and 4'). Figure 5 shows a view after the guard element 4, at a later time, has been removed by tearin it out.

In Figures 6, and 8 I show a form of my device in which a binding tape 2 and a guard element 4 are combined, as an article of manufacture, ready for application by stitching to the upper outer edge of a shoe upper. The guard 4 is secured to the binder tape 2 by a line of tacking stitches 24 very close to the ulper edges of the tape and guard which s cc to render the combined strips, for handling purposes, a unit, the combination binder being formed in long strips and cut into any desired lengths, for use, as needed.

I prefer to use, for the guard element, a thin, moisture-proof sheet strip, easily torn, such as a thin wood-pulp paper or a thin glassene (so-called) fabric or the so-called cellophane fabric.

The perforations in the guard 4 for the tearing line may be made in advance of the application to an upper or other object to be bound and finished, but if so the line must be placed in perfect coincidence with the connecting seam between the binding tape and the upper, neither below the seam, in which case a projecting fringe would remain, nor above the seam, in which case the perforations would be without utility. The perfect way in which to perforate the guard strip, is as shown, to interpose the guard strip between the binder tape and the upper and stitch the tape and upper together, the needle forming the perforations in the ard strip in the operation of sewing the inder tape upon the upper.

I have described in this specification the cement as liquid cement, applied in this form to the bindin strip surface after the stitchmg and per orating operation. However,

for some purposes it may be preferable to.

apply the cement and permit it to dry, later to be rendered again soft and tacky by the ap lication of a suitable solvent. This proce ure is more particularly applicable to the binding tape assembly shown in Figures 6, 7 and 8, wh1ch is designed tobe marketed in rolls and, if precemented, can be used by manufacturers without the necessity of a hot cement pot. In this application of my invention the guard protector 4 prevents the contact of the solvent, as it is applied to the dry cement 2 after the stitching of the binding strip to the upper edge and surface of the upa protective guard of sheet material w 'ich is.

wider than and. projects below the tape, between the tape and the up er edge; stitching the tape to the edge to be nished and perforating the interposed guard sheet; a plying wet cement to the outer surface of t e tape and turning the tape over the edge to be finished and cementin it to the other side of the upper; and tearing the protective guard sheet along the line of perforation.

2. The method of finishing a shoe upper edge or the like, which consists in applying a strip or tape of suitable material coated with dry cement to the upper at the edge to be finished; interposing a protective guard of sheet material which is wider than and projects below the tape, between the tape and the upper edge; stitching the tape to the edge to be finished and perforating the interposed guard sheet; applying a solvent to the dry cement on the outer surface of the tape and turning the tape over the edge to be finished and cementin it to the other side of the upper; and tearmg the protective guard along the line of perforation.

3. As an article of manufacture, a binding strip, made up of an elongated sheet of binding material connected along one edge with one edge of a wider elongated guard sheet" of protective material, projecting along the free side edge of the binding strip.

4. As an article of manufacture, a binding strip, made up of an elon ated sheet of binding material connected along one edge with one edge of a wider elongated guard sheet of protective material projecting along the free side edge of the binding strip; and cement upon the exposed side of the binding material.

5. As an article of manufacture, a binding strip,'made up of an elongated sheet of binding material connected along one edge with a wider elongated guard sheet of protective material, perforated along 'the connected edge and projecting along the free side edge of the binding strip.

Signed at Boston, Massachusetts, this fourth day of June, 1930.

ANTHONY W. PETERS. 

